Ventilating system



H. s. KAlsER 1,931,227

VENTILATING lSYSTEM' Oct. 17, 1933.

Filed Aug. 20, 195o 2 sheets-Sheet 1 30 Q7' d o Qnverzor "7.' /f farai-ry 5. /fa 1156/ Ziff/@55: i Mw/59AM@ @y #dC/ //ff am Oct'. 17, 1933. H s KAISER 1,931,227 VENTILATING SYSTEM 2 Sheets-Sheet 2 Filed Aug. 20, 1930 hunted Oct. 17, i933 UNITED STATES PATENT OFFICE Claims.

The invention relates to ventilators and has as one of its prime objects the provision of a construction which will promote circulation of air in a space to be ventilated.

The invention has as another object the provision of means whereby the air in a room or space to be ventilated may be exhausted from the room and returned to the room to thus promote circulation.

Another object of the invention is to provide a ventilator capable of simultaneously exhausting air from and supplying fresh air to a space to be ventilated.

Another object of the invention is to provide a construction capable of functioning in the manner just referred to which is also capable of being arranged to supply a current of fresh air only to the space to be ventilated Without exhausting air from said space.

Another object of the invention is to provide a construction which may be manipulated so as to only exhaust air from the space to be ventilated without supplying fresh air to said space.

It is a further object of the invention to provide a construction having a plurality of chambers having air advancing means associated therewith and having means therein whereby air may be respectively and simultaneously supplied to and exhausted from the space to be ventilated through said chambers.

In addition, it is an object to provide a construction having a plurality of chambers having air advancing means provided therein and capable of functioning in the 'manner above referred to, the structure also being capable of functioning so as to only supply fresh air to the space to be ventilated.

It is a further object to provide a ventilator having means such as those above referred to, that is, a plurality of chambers,"the chambers having means provided therein for advancing air through said chambers and in addition being 'provided with means which may be manipulated to accomplish the exhaustion of air only when the elements employed are set to accomplish this last mentioned function.

In addition to the above, it is an object to provide a construction having a plurality of chambers and air advancing means and means which may be set so that circulation only of air in the space to be ventilated may be accomplished without the introduction of fresh air thereto.

The invention has also as an object the provision of a construction which is capable of being arranged in the opening of a window frame between the frame and said window, the structure being provided with elements whereby the several advantages above enumerated may be accomplished.

It is another object of the invention to provide a structure capable of accomplishing the various advantages hereinbefore referred to, said structure having means associated therewith for heating, humidifying and cleasing air which is to be introduced to the space to be ventilated.

The invention has these and other objects, all of which will be explained in detail and more readily understood when read in conjunction with the accompanying drawings in which one embodiment of which the invention is susceptible is illustrated, it being manifest that changes and modifications may be resorted to without departing from the spirit ofthe appended claims forming a part hereof.

In the drawings, Fig. 1 is an elevation of a 75 portion of a window frame and Window showing a ventilator constructed to accomplish the above mentioned advantages associated therewith;

Fig. 2 is a, section taken on line 2--2 of Fig. 1;

Fig. 3 is a section taken on line 3--3 of Fig. 1; 80

and

Fig. 4 is a section taken on line 4--4 of Fig. 1 showing the elements in a slightly enlarged scale.

'Ihe embodiment of the invention illustrated in the drawings is designed to be associated and located within the opening of a window frame 10 between the sill 11 thereof and the lowenrail 12 of a Window sash 13, however, it is understood that the invention is not limited to the particular arrangement of elements or the particular use illustrated.

The structure illustrated for accomplishing the various objects contemplates the provision of a casing generally designated 14 having the end walls 15 and 16, the top Wall 1'7, a front wall 18 95 and an inclined wall 19, the latter of which is hinged at 20 and is held in the position thereof shown in Fig. 4 by any suitable means such as, for instance, a spring clip 21. Ihe Wall 19 is provided with a plurality of apertures 22 and 23. 100 The upper wall 1'7 is also provided with a'vplurality of openings 24 and 25. The front wall 18 is providedwith a plurality of openings 26 which are covered by louvers 27.

The casing generally designated 14 is divided by'a wall 28 ,which thus'produces chambers 29' and 30, Each of these chambers 29' and 30 is constructed to produce chambers 3 1 and 32. This last mentioned structure `is most clearly lshown in Fig. 4,A from'which nrcan be seen that said 110 last mentioned chambers include the wall 33, the wall 34 and the wall 35, the latter of which has a damper 36 pivotally secured thereto at 37 which controls the opening 36 provided in the wall 35.

n Air advancing means 38 are located in the chambers 29 and 30 and include an impeller (not shown) and a casing 39 having an opening 40. The openings 40 of each casing 39 provide means of communication between the respective chambers 29 and 30 and the auxiliary chambers 31 and 32 through the outlets 41.

It may be here stated that the wall 33 extends from the mouth of the casing of the air advancing means to the wall 18 and that the auxiliary chamber 29 is provided with an opening 42 which, when the device is set to perform a certain function, is closed by a damper 43 which is hinged at its lower edge as indicated at 44.

As before stated, it is an object t o cleanse the air prior to its entrance to the device and therefore a screen or air filter 45@y may be arranged to extendacross the opening 42 and preferably between the opening and the wall 18. The damper 43 is provided with a handle 46 and the damper 36 is provided with a means generally designated 47 whereby these dampers may be actuated so that they will assume the full line positions thereof shown in Fig. 4 or the dotted line positions shown in said figure.

A heater device 48 for heating the air is illustrated which may be of any desired character and a humidifying means 49 is also provided, the heater and humidifying means being arranged so that air circulating through either of the chambers 29 and 30 is caused to contact with the heater elements 48 and to cooperate with the humidifying device 49 to thereby properly condition the air prior to its discharge into the room or space to be ventilated.

The air advancing means 38 are adapted to be actuated through the medium of an electric motor 50 which, for convenience of illustration, vis mounted for support upon the wall 28 and is provided with the oppositely extending shaft sections 51 and 52 which are connected with the impellers of the air advancing means so that when the motor is actuated, circulation of air results.

When the dampers 43 of both chambers 29 and 30 and the dampers 36 of the chambers 31 and 32 are arranged in the manner shown in full lines in Fig. 4, it is manifest that atmosphere will be drawn through the openings 42 of chambers 29 and 30 through the openings 40 of the casings 39 oftheair advancing means 38 and be discharged through the mouth 41 of said casings 39 into the auxiliary chambers such as `3 1 and 32 and thence through the openings 24 and 25 of the respective chambers 29 and 30 into t e space to be ventilated. When the dampers 36 and 43 are arranged in the dotted line positioy thereof shown in Fig. 4, air willbe drawn fromfthe space to be ventilated through the openings 22 and 23 into the chambers 29 and 30 through the casing of the air advancing means and thence through the auxiliary chambers 31 and 32 from whichit is discharged to atmosphere through the opening 36'. When it is desired to merely circulate the air in the space to be ventilated without adding fresh air thereto, the dampers 36 and 43 are arranged with `the damperl 43 in the dotted line position thereof shown and with the damper 36 in the full line position which will for-m a communication with the space to be ventilated through the aperture 23 and this air in the space is caused to be drawn into the vauxiliary chamber 29 and therefrom through the casing 39 of the air advancing means and thence into the chamber 32' and out through the openings 24. Since both of the chambers 29 and 30 are provided with dampers such as 36 and 43, it is evident that this provides a structure whereby air may be caused to merely circulate to and from one of said chambers 29 or 30 and the space to be ventilated and have fresh air simultaneously supplied to said space through the other chamber. It is evident that `the dampers in one or the other of the chambers 29 and 30 may be arranged in the position shown in full lines in Fig. 4 which will draw fresh air from atmosphere and discharge it into the space to be ventilated while the dampers in the other chamber may be arranged with the damper 43 in the dotted line position thereof shown in Fig. 4 and the damper 36 arranged in the full line position thereof which will merely cause air in the space to be ventilated to be circulated from said space through the ventilator and back to the space. It is manifest that when the structure is set in the manner just referred to air is merely circulated from and to the space to be ventilated by the means provided in one of said chambers While fresh air is simultaneously.

introduced to the space to be ventilated through theA other chamber. dampers in the respective chambers 29 and 30 may both be arranged as shown in the full line position thereof shown in Fig. 4 which will cause fresh air to be drawn into both chambers 29 and 30 and be discharged from both auxiliary chambers 31 and 32 and thence be discharged through the openings such as 24 and 25 into the space to be ventilated.

In addition to the above, itis manifest that the structure is such that it is capable of manipulation so that air is exhausted from the space to be ventilated and discharged to atmosphere through both chambers such as 29 and 30. When this is desired, all of the dampers 36 and 43 are arranged in the dotted line position thereof shown in Fig. 4 which will Withdraw air through the openings 22 and 23 from the space to be ventilated and discharge it through the openings 36 and thence through the openings 26 provided in the wall 18. When the dampers 43 and 36 of both chambers 29 and 30 are arranged in the full line position thereof shown in Fig. 4, fresh air will be drawn into each of the chambers 29 and 30 and be discharged through the openings 24 and 25 and thence into the room or space to be ventilated. Since the structure may be provided with humidifying means such as 49, means for heating the air and means for cleansing said air, said air may be brought to a better condition of use prior to its introduction to the space to be ventilated.

It is further manifest that by hingedly connecting the wall 14 with the other elements of the structure, this provides a means whereby access to the various elements located within the casing isreadily accomplished.

Having thus described the invention, what I claim and desire to cover by Letters Patent is:

1.l In a ventilator the combination of a casing, said casing having openings respectively communicating with the atmosphere and a, space to be.

ventilated, means for selectively controlling the passage of air through said openings, a chamber in said casing, said chamber being in communiation withv said casing and having openings respectively communicating With the atmosphere and said space to be ventilated, means It is evident that the for selectively controlling the passage of air through the openings in said chamber, and air advancing means for advancing air from said casing to said chamber.

2. In a ventilator the combination of a casing, said casing having openings respectively communicating with the atmosphere and a space to be ventilated, means for selectively controlling the passage of air through said openings, a chamber in said casing, saidy chamber being in communication with said casing and having openings respectively communicating with said space to be ventilated and the atmosphere, means for selectively controlling the passage of air through said openings in said chamber and directing air from said casing to the atmosphere or to said space to be ventilated, and air advancing means arranged in said casing for advancing air from said casing to said chamber.

3. In a ventilator the combination of a casing divided to provide separate compartments, each compartment having openings respectively communicating with atmosphere and a space to be ventilated, a chamber in each of said compartments, said chambers each having openings respectively communicating with atmosphere and a space to be ventilated, said compartments and said chambers each having means for selectively controlling the passage of air through said openings, said means for controlling the passage of air being independently operable to thereby provide means whereby air may be simultaneously circulated from atmosphere to said space to be ventilated and withdrawn from said space and discharged to atmosphere.

4. In a ventilator the combination of a casing divided to provide separate compartments; each compartment having openings respectively lcommunicating with the atmosphere and a space to be ventilated, a chamber in each of said compartments, said chambers each having openings respectively communicating with the atmosphere and the space to be ventilated, said compartments andl said chambers each having independently operable means for selectively controlling the passage of air through said openings, and said means being adapted to be arranged relatively to said openings to provide means through which air may simultaneously circulate through one compartment and chamber from the atmosphere `to said space and from said space to the other compartment and chamber and back to said space.

5. In a ventilator the combination of a casing, said casing having openings for respectively communicating with the atmosphere and a space to be ventilated, a damper arranged adjacent said openings adapted to cooperate Witheeither of said openings, a chamber in said casing, said chamber being in communication with said casing and having openings respectively communicating with the atmosphere and said space to be ventilated, a damper adapted to cooperate with either of said last mentioned openings, and air advancing means for advancing air from said casing to saidchamber when said dampers are in either of their adjusted positions.

HARRY S. KAISER. 

